Stalling and bogging
Thread Starter
Heel & Toe
Joined: Jul 2004
Posts: 24
Likes: 0
Stalling and bogging
After I drive my car for a little bit, the car will sound like it wants to die. The RPMs will flucuate from around 2000 down to 0 and the Tach will just jump back and forth like that for awhile. Sometimes if I just give it a quick stomp on the car it will stop, but always come back.
Also, under full throttle, my exhaust will pop and the car will kind of bog.
Any ideas?
Also, under full throttle, my exhaust will pop and the car will kind of bog.
Any ideas?
Drifting
Joined: Nov 2002
Posts: 1,665
Likes: 1
From: Ontario
What mods have been done to the engine & what carb are you running? Has this problem appeared suddenly or gradually gotten worse over time? Have you made any changes recently to your engine? I agree with comp to check for vacuum leaks. Verify your timing as well. If vacuum & timing are ok have a look at your carb. You are in for some good learnin, fortunately the forum is full of good info. Rely on the search function 
Last edited by Boofers; Jul 21, 2004 at 11:58 AM.
Thread Starter
Heel & Toe
Joined: Jul 2004
Posts: 24
Likes: 0
Originally Posted by Boofers
What mods have been done to the engine & what carb are you running? Has this problem appeared suddenly or gradually gotten worse over time? Have you made any changes recently to your engine? I agree with comp to check for vacuum leaks. Verify your timing as well. If vacuum & timing are ok have a look at your carb. You are in for some good learnin, fortunately the forum is full of good info. Rely on the search function
Well my whole engine carb setup isn't that old..maybe 1000 miles.but it has kind of been doing it for awhile. It has a new air filter. Could it possibly be the fuel filter or fuel pump? I'll go check all the vaccumn likes today..i'm not really good at this engine stuff..how would I check the timing? or what should it be at?
Dont call me stupid! Also it has a Holley 4160, The engine has heads, cams, .30 over pistons
One thing I thought of....could it possibly be a wrong size power valve?
Edit: Also I tried to use the search engine, but couldn't find much to help. So I'm sorry if this has some up before
Intermediate
Joined: Sep 2003
Posts: 48
Likes: 0
From: Luxembourg europe
HI
I have a similar problem. A little while ago my 79 L48 started to just fail to fire when I kick down. Tacho drops to 0 but as soon as i let the gas pedal go everything is fine again. this only started after i had my ignition reset. I find it happens especially when the engine is cold. but it doesn't happen all the time. Every time i start the engine it runs differently. as far as i can imagine it must be some problem with the distributor. I changed the delco cap and coil and vacuum advance but it still happens every now and then, but a bit less since the new vacuum advance is in. i guess it must be some wrong advance setting.. but ??
or maybe the distributor is worn out ??
the only thing left to do for me is to replace the main distributor shaft i guess.
someone know what this could be?
thanks
I have a similar problem. A little while ago my 79 L48 started to just fail to fire when I kick down. Tacho drops to 0 but as soon as i let the gas pedal go everything is fine again. this only started after i had my ignition reset. I find it happens especially when the engine is cold. but it doesn't happen all the time. Every time i start the engine it runs differently. as far as i can imagine it must be some problem with the distributor. I changed the delco cap and coil and vacuum advance but it still happens every now and then, but a bit less since the new vacuum advance is in. i guess it must be some wrong advance setting.. but ??
or maybe the distributor is worn out ??
the only thing left to do for me is to replace the main distributor shaft i guess.
someone know what this could be?
thanks
Thread Starter
Heel & Toe
Joined: Jul 2004
Posts: 24
Likes: 0
Originally Posted by motown 71
Maybe dirt in the needle seats, or a timing issue.
I'd let her idle and take a look at the carb. look for too much fuel at idle. check timing.
I'd let her idle and take a look at the carb. look for too much fuel at idle. check timing.
It doesn't happen all the time..only every once in awhile...its kind of random.
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Thread Starter
Heel & Toe
Joined: Jul 2004
Posts: 24
Likes: 0
Originally Posted by allancook5
Hey, i had the same exact problem on my vette, and 81 as well, i changed the carb, i had a holley, not sure if it was the same, to an edelbrock performer 600, it never happened again.
Hmm that sucks.Could it also be a problem with the powervalve?
